The creation of ClickHouse Cloud's MultiSTS approach, which allows for efficient scaling vertically, was driven by the need to balance velocity with stability in technical decision-making. The initial choice of using StatefulSets to control server pods provided advantages such as persistent volume claims and rolling restarts, but also introduced limitations that made it difficult to scale replicas dynamically. To address this, a new approach called Make Before Break (MBB) was developed, which involves adding capacity to the existing cluster before removing old replicas. This approach requires custom Kubernetes controllers and Temporal-based automation systems to manage the complex migration process. The implementation involved significant challenges, including issues with system tables, attachments, and partial maintenance mode, but ultimately resulted in a more elastic and resilient cloud infrastructure for ClickHouse users. With MBB, customers can now take advantage of vertical scaling without disrupting their production workloads, significantly improving scaling times and capacity availability.